List of top Biology Questions

Adaptive radiation is an example of which type of evolution?
Platelets are formed at which site?
Which technique did Mendel use while experimenting on pea plants?
Why are restrictions imposed on MTP in India? Up to how many weeks or trimesters, is MTP considered relatively safe for a female, if necessary to perform, by a medical practitioner?
If a natural population of 60 individuals is in Hardy-Weinberg equilibrium for a gene with two alleles B and b, with the gene frequency of allele B of 0.7, the genotype frequency of Bb will be:
In absence of fertilization, corpus luteum degenerates into ____________.
Select and rewrite appropriate disorder of respiratory system with the given symptoms : [ sinusitis, emphysema, silicosis and asbestosis, laryngitis ]
Expand the term ZIFT.
Bt cotton formed from:
A normal couple produces half the sons as haemophilic and half the daughters as carriers. Choose the option that correctly indicates the chromosome on which the gene for this trait is located.
Name the type of heterogamety observed in most birds.
Write short notes on any two of the following: ( Red Data Book
Interpret the given diagrams A and B. Enlist the changes occurring during inspiration and expiration.
What are chromosomal disorders? Describe Turner's syndrome and Klinefelter's syndrome.
Describe pyramid of energy with the help of diagram.
Explain following terms : (a) Grafting \quad (b) Apomixis \quad (c) Polyembryony \quad (d) Parthenocarpy
Describe histological structure of Testis with well labelled diagram.
Describe nervous system in planaria with well labelled diagram.
Explain green house effect with reference to gases responsible for it and their sources.
Describe physiological effects and applications of ethylene.
What is lac? Enlist economic importance of Lac.
Give the name and type of I, IV and VII cranial nerves.
What are the limitations of root pressure theory?
Give the different steps involved in formation of m-RNA from hn-RNA.
Name and describe hormones secreted by ovaries.